Eletrode and Nipple Dimension and Allowable Deviation

Electrode Diameter and Allowable Deviation Unit,mm

                 Nominal Diameter Basic Diameter Actual Diameter Length
Max Min Black Min
NP 300 305 307 302 299  1600/1800
350 355 357 352 349 1600/1800
400 406 409 403 400 1600/1800/2000/2200
450 457 460 454 451 1600/1800/2000/2200
500 508 511 505 502 1800/2000/2200/2400
600 610 613 607 604 2000/2200/2400
HP 300 305 307 302 299 1600/1800
350 355 357 352 349 1600/1800
400 406 409 403 400 1600/1800/2000/2200
450 457 460 454 451 1600/1800/2000/2200
500 508 511 505 502 1800/2000/2200/2400
UHP 400 406 409 403 / 1800/2100
450 457 460 454 / 1800/2100/2400
500 508 511 505 / 1800/2100/2400
550 559 562 556 / 1800/2100/2400
600 610 613 607 / 2100/2400/2700
700 711 714 708 / 2400/2700
750 762 765 759 / 2400/2700

Electrode Length and Allowable Deviation Unit,mm

Nominal Length Standard Length Shortened Length Remark
Max Min Max Min
1600 1700 1500 1500 1325 Specific length can be supplied according to customer’s demand.
1800 1875 1700 1700 1525
2000 2100 1900 1900 1725
2100 2175 1975 1975 1825
2400 2575 2275 2275 2125
2700 2850 2550 2550 2400

Machining Dimension of Electrode and Nipple Unit,mm

Applicable scope Nominal Dia. IEC code Nipple Medium
 Dia.
Socket Pitch
Large Dia. length

Small
 Dia.

Socket Depth
RP,
 HP,
UHP  
300 177T3N 177.16 270.90 172.95 168.73 141.50 8.47
350 215T3N 215.90 304.80 211.69 207.47 158.40
400 215T3N 215.90 304.80 211.69 207.47 158.40
400 241T3N 241.30 338.70 237.09 232.87 175.30
450 241T3N 241.30 338.70 237.09 232.87 175.30
450 273T3N 273.05 355.60 268.84 264.62 183.80
500 273T3N 273.05 355.60 268.84 264.62 183.80
500 298T3N 298.45 372.60 294.24 290.02 192.20
550 298T3N 298.45 372.60 294.24 290.02 192.20
RP,
HP,
UHP
300 177T4N 177.80 215.90 174.64 171.48 114.00 6.35
350 203T4N 203.20 254.00 200.04 196.88 133.00
400 222T4N 222.25 304.80 219.09 215.93 158.40
400 222T4L 222.25 355.60 219.09 215.93 183.80
450 241T4N 241.30 304.80 238.14 234.98 158.40
450 241T4L 241.30 355.60 238.14 234.98 183.80
500 269T4N 269.88 355.60 266.72 263.56 183.80
500 269T4L 269.88 457.20 266.72 263.56 234.60
550 298T4N 298.45 355.60 295.29 292.13 183.80
550 298T4L 298.45 457.20 295.29 292.13 234.60
600 317T4N 317.50 355.60 314.34 311.18 183.80
600 317T4L 317.50 457.20 314.34 311.18 234.60
700 374T4N 374.65 457.20 371.49 368.33 234.60
700 374T4L 374.65 558.80 371.49 368.33 285.40
750 406T4N 406.40 508.00 403.24 400.08 260.00
750 406T4L 406.40 609.60 403.24 400.08 310.80